proc-macro2 • 1.0.92A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.
regex • 1.7.3An implementation of regular expressions for Rust. This implementation uses
finite automata and guarantees linear time matching on all inputs.
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rental-impl • 0.5.5An implementation detail of rental. Should not be used directly.
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rental • 0.5.6A macro to generate safe self-referential structs, plus premade types for common use cases.
smallvec • 1.13.2'Small vector' optimization: store up to a small number of items on the stack
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stable_deref_trait • 1.2.0An unsafe marker trait for types like Box and Rc that dereference to a stable address even when moved, and hence can be used with libraries such as owning_ref and rental.